The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 20, 2019
Filed:
Jan. 28, 2016
Mitsubishi Electric Corporation, Chiyoda-ku, JP;
Kazumasa Ito, Chiyoda-ku, JP;
Shinichi Yamaguchi, Chiyoda-ku, JP;
Haruyuki Kometani, Chiyoda-ku, JP;
Masatsugu Nakano, Chiyoda-ku, JP;
Norihiro Achiwa, Chiyoda-ku, JP;
Yoshiki Maeda, Chiyoda-ku, JP;
Masaya Harakawa, Chiyoda-ku, JP;
MITSUBISHI ELECTRIC CORPORATION, Chiyoda-ku, JP;
Abstract
With regard to an end portion shape of a slit formed in a rotor core in which flux barriers are formed in a circumferential direction in an identical number to the number of poles by arranging one or more slits and core layers alternately in a radial direction, an end portion of a slit is shaped such that, when mis set as the number of slit end portions, nis set as a natural number no smaller than 1, α and β are set as numbers within a range of −¼ to ¼, q is set as a natural number no smaller than 1, and Nis set as the number of slots, intervals δand εfrom a first slit end to an islit end of a slit wall on an identical circumferential direction side satisfy specific mathematical formulae.